.my-h-water-fall{
  display: flex;
  flex-wrap: wrap;
  * {
    box-sizing: border-box;
  }
  &::after {
    content: '';
    flex-grow: 999999999;
  }
  .item-warp{
    position: relative;
    .content-warp{
      position: absolute;
      top: 0;
      width: 100%;
      bottom: 0;
      vertical-align: bottom; 
    }
  }
}

.my-v-water-fall{
  position: relative;
  display: flex;
  flex-flow: row nowrap;
  * {
    box-sizing: border-box;
  } 
  .col-warp{
    flex: 1;
    height: 0; 
    position: relative;
  } 
  .item-warp{
    position: absolute;
    transition: left 0.5s, top 0.5s;
    .content-warp{
      position: absolute;
      top: 0;
      width: 100%;
      bottom: 0;
      vertical-align: bottom; 
    }
  }
}

